./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/NO_01.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed20c236-213c-4155-ac5b-6e8631585391/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed20c236-213c-4155-ac5b-6e8631585391/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed20c236-213c-4155-ac5b-6e8631585391/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed20c236-213c-4155-ac5b-6e8631585391/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_01.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed20c236-213c-4155-ac5b-6e8631585391/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed20c236-213c-4155-ac5b-6e8631585391/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fb88f4e3847928194a09ee7421ca208530ca40554291ef14571bd7868fcf839b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:40:37,148 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:40:37,209 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed20c236-213c-4155-ac5b-6e8631585391/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-29 06:40:37,215 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:40:37,215 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:40:37,240 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:40:37,240 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:40:37,241 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:40:37,241 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:40:37,242 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:40:37,243 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:40:37,243 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:40:37,244 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:40:37,244 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-29 06:40:37,245 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-29 06:40:37,245 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-29 06:40:37,246 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-29 06:40:37,246 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-29 06:40:37,247 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-29 06:40:37,248 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:40:37,248 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-29 06:40:37,249 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:40:37,249 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:40:37,250 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-29 06:40:37,250 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-29 06:40:37,251 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-29 06:40:37,251 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 06:40:37,252 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:40:37,252 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-29 06:40:37,253 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:40:37,253 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:40:37,253 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:40:37,254 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:40:37,254 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:40:37,255 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-29 06:40:37,255 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed20c236-213c-4155-ac5b-6e8631585391/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed20c236-213c-4155-ac5b-6e8631585391/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb88f4e3847928194a09ee7421ca208530ca40554291ef14571bd7868fcf839b [2023-11-29 06:40:37,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:40:37,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:40:37,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:40:37,477 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:40:37,478 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:40:37,479 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed20c236-213c-4155-ac5b-6e8631585391/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/termination-restricted-15/NO_01.c [2023-11-29 06:40:40,218 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:40:40,364 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:40:40,364 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed20c236-213c-4155-ac5b-6e8631585391/sv-benchmarks/c/termination-restricted-15/NO_01.c [2023-11-29 06:40:40,369 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed20c236-213c-4155-ac5b-6e8631585391/bin/uautomizer-verify-BQ2R08f2Ya/data/c89996512/eaf62bca6d304bc7be9140fc459e7cd7/FLAG77ec41b50 [2023-11-29 06:40:40,381 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed20c236-213c-4155-ac5b-6e8631585391/bin/uautomizer-verify-BQ2R08f2Ya/data/c89996512/eaf62bca6d304bc7be9140fc459e7cd7 [2023-11-29 06:40:40,384 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:40:40,385 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:40:40,387 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:40:40,387 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:40:40,392 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:40:40,393 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:40:40" (1/1) ... [2023-11-29 06:40:40,394 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e87cb9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:40, skipping insertion in model container [2023-11-29 06:40:40,395 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:40:40" (1/1) ... [2023-11-29 06:40:40,413 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:40:40,545 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:40:40,550 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:40:40,562 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:40:40,573 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:40:40,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:40 WrapperNode [2023-11-29 06:40:40,573 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:40:40,574 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:40:40,574 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:40:40,574 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:40:40,580 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:40" (1/1) ... [2023-11-29 06:40:40,583 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:40" (1/1) ... [2023-11-29 06:40:40,597 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 34 [2023-11-29 06:40:40,597 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:40:40,598 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:40:40,598 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:40:40,598 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:40:40,607 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:40" (1/1) ... [2023-11-29 06:40:40,607 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:40" (1/1) ... [2023-11-29 06:40:40,608 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:40" (1/1) ... [2023-11-29 06:40:40,612 INFO L175 MemorySlicer]: No memory access in input program. [2023-11-29 06:40:40,613 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:40" (1/1) ... [2023-11-29 06:40:40,613 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:40" (1/1) ... [2023-11-29 06:40:40,614 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:40" (1/1) ... [2023-11-29 06:40:40,619 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:40" (1/1) ... [2023-11-29 06:40:40,620 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:40" (1/1) ... [2023-11-29 06:40:40,620 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:40" (1/1) ... [2023-11-29 06:40:40,622 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:40:40,623 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:40:40,623 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:40:40,623 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:40:40,624 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:40" (1/1) ... [2023-11-29 06:40:40,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:40:40,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed20c236-213c-4155-ac5b-6e8631585391/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:40:40,654 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed20c236-213c-4155-ac5b-6e8631585391/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:40:40,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed20c236-213c-4155-ac5b-6e8631585391/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-29 06:40:40,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:40:40,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:40:40,754 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:40:40,756 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:40:40,813 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:40:40,821 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:40:40,822 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-29 06:40:40,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:40:40 BoogieIcfgContainer [2023-11-29 06:40:40,823 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:40:40,824 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-29 06:40:40,824 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-29 06:40:40,827 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-29 06:40:40,827 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 06:40:40,827 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 06:40:40" (1/3) ... [2023-11-29 06:40:40,828 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@16aef428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:40:40, skipping insertion in model container [2023-11-29 06:40:40,828 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 06:40:40,828 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:40" (2/3) ... [2023-11-29 06:40:40,829 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@16aef428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:40:40, skipping insertion in model container [2023-11-29 06:40:40,829 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 06:40:40,829 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:40:40" (3/3) ... [2023-11-29 06:40:40,830 INFO L332 chiAutomizerObserver]: Analyzing ICFG NO_01.c [2023-11-29 06:40:40,875 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-29 06:40:40,875 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-29 06:40:40,875 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-29 06:40:40,875 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-29 06:40:40,875 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-29 06:40:40,875 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-29 06:40:40,875 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-29 06:40:40,876 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-29 06:40:40,879 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:40:40,892 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2023-11-29 06:40:40,892 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 06:40:40,892 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 06:40:40,896 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-29 06:40:40,896 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-29 06:40:40,896 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-29 06:40:40,896 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:40:40,898 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2023-11-29 06:40:40,898 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 06:40:40,898 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 06:40:40,898 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-29 06:40:40,898 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-29 06:40:40,904 INFO L748 eck$LassoCheckResult]: Stem: 11#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~c~0#1, main_~i~0#1;havoc main_~c~0#1;havoc main_~i~0#1;main_~c~0#1 := 864; 10#L10true assume main_~c~0#1 <= 10;main_~i~0#1 := 0; 2#L12-2true [2023-11-29 06:40:40,904 INFO L750 eck$LassoCheckResult]: Loop: 2#L12-2true assume !!(main_~i~0#1 < 100);main_~i~0#1 := 1 + main_~i~0#1; 2#L12-2true [2023-11-29 06:40:40,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:40:40,909 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2023-11-29 06:40:40,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:40:40,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312353861] [2023-11-29 06:40:40,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:40:40,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:40:41,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:41,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:40:41,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:40:41,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312353861] [2023-11-29 06:40:41,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312353861] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:40:41,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:40:41,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:40:41,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406238632] [2023-11-29 06:40:41,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:40:41,073 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-29 06:40:41,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:40:41,074 INFO L85 PathProgramCache]: Analyzing trace with hash 45, now seen corresponding path program 1 times [2023-11-29 06:40:41,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:40:41,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662783552] [2023-11-29 06:40:41,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:40:41,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:40:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:40:41,084 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:40:41,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:40:41,100 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:40:41,141 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 06:40:41,141 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 06:40:41,142 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 06:40:41,142 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 06:40:41,142 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 06:40:41,142 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:40:41,142 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 06:40:41,142 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 06:40:41,143 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_01.c_Iteration1_Loop [2023-11-29 06:40:41,143 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 06:40:41,143 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 06:40:41,159 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:40:41,176 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:40:41,180 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:40:41,235 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 06:40:41,236 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 06:40:41,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:40:41,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed20c236-213c-4155-ac5b-6e8631585391/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:40:41,240 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed20c236-213c-4155-ac5b-6e8631585391/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:40:41,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed20c236-213c-4155-ac5b-6e8631585391/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-29 06:40:41,249 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 06:40:41,250 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:40:41,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed20c236-213c-4155-ac5b-6e8631585391/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-29 06:40:41,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:40:41,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed20c236-213c-4155-ac5b-6e8631585391/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:40:41,274 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed20c236-213c-4155-ac5b-6e8631585391/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:40:41,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed20c236-213c-4155-ac5b-6e8631585391/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-29 06:40:41,276 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 06:40:41,277 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:40:41,304 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 06:40:41,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed20c236-213c-4155-ac5b-6e8631585391/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-29 06:40:41,308 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 06:40:41,308 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 06:40:41,308 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 06:40:41,308 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 06:40:41,308 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 06:40:41,309 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:40:41,309 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 06:40:41,309 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 06:40:41,309 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_01.c_Iteration1_Loop [2023-11-29 06:40:41,309 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 06:40:41,309 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 06:40:41,311 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:40:41,319 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:40:41,324 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:40:41,363 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 06:40:41,367 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 06:40:41,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:40:41,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed20c236-213c-4155-ac5b-6e8631585391/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:40:41,370 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed20c236-213c-4155-ac5b-6e8631585391/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:40:41,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed20c236-213c-4155-ac5b-6e8631585391/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-29 06:40:41,374 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 06:40:41,385 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 06:40:41,385 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 06:40:41,386 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 06:40:41,386 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 06:40:41,386 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 06:40:41,389 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 06:40:41,389 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 06:40:41,404 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 06:40:41,409 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 06:40:41,409 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 06:40:41,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:40:41,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed20c236-213c-4155-ac5b-6e8631585391/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:40:41,433 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed20c236-213c-4155-ac5b-6e8631585391/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:40:41,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed20c236-213c-4155-ac5b-6e8631585391/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-29 06:40:41,436 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 06:40:41,436 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 06:40:41,437 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 06:40:41,438 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 199 Supporting invariants [] [2023-11-29 06:40:41,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed20c236-213c-4155-ac5b-6e8631585391/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-11-29 06:40:41,444 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 06:40:41,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:40:41,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:41,481 INFO L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 06:40:41,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:40:41,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:41,496 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:40:41,496 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:40:41,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:40:41,530 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-29 06:40:41,532 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:40:41,570 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 44 transitions. Complement of second has 6 states. [2023-11-29 06:40:41,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-29 06:40:41,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:40:41,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 35 transitions. [2023-11-29 06:40:41,579 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 3 letters. Loop has 1 letters. [2023-11-29 06:40:41,580 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:40:41,580 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 4 letters. Loop has 1 letters. [2023-11-29 06:40:41,581 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:40:41,581 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 3 letters. Loop has 2 letters. [2023-11-29 06:40:41,581 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:40:41,582 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 44 transitions. [2023-11-29 06:40:41,585 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 3 [2023-11-29 06:40:41,588 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 8 states and 11 transitions. [2023-11-29 06:40:41,589 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-29 06:40:41,589 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-29 06:40:41,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2023-11-29 06:40:41,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:40:41,590 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-29 06:40:41,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2023-11-29 06:40:41,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-11-29 06:40:41,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:40:41,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2023-11-29 06:40:41,615 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-29 06:40:41,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:40:41,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:40:41,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:40:41,619 INFO L87 Difference]: Start difference. First operand 8 states and 11 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:40:41,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:40:41,629 INFO L93 Difference]: Finished difference Result 6 states and 6 transitions. [2023-11-29 06:40:41,630 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 6 transitions. [2023-11-29 06:40:41,630 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-29 06:40:41,630 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 6 states and 6 transitions. [2023-11-29 06:40:41,631 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-29 06:40:41,631 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-29 06:40:41,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6 transitions. [2023-11-29 06:40:41,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:40:41,631 INFO L218 hiAutomatonCegarLoop]: Abstraction has 6 states and 6 transitions. [2023-11-29 06:40:41,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 6 transitions. [2023-11-29 06:40:41,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2023-11-29 06:40:41,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.0) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:40:41,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2023-11-29 06:40:41,633 INFO L240 hiAutomatonCegarLoop]: Abstraction has 6 states and 6 transitions. [2023-11-29 06:40:41,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:40:41,634 INFO L428 stractBuchiCegarLoop]: Abstraction has 6 states and 6 transitions. [2023-11-29 06:40:41,634 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-29 06:40:41,634 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 6 transitions. [2023-11-29 06:40:41,635 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-29 06:40:41,635 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 06:40:41,635 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 06:40:41,635 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-29 06:40:41,635 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-29 06:40:41,636 INFO L748 eck$LassoCheckResult]: Stem: 92#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 93#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~c~0#1, main_~i~0#1;havoc main_~c~0#1;havoc main_~i~0#1;main_~c~0#1 := 864; 91#L10 assume !(main_~c~0#1 <= 10); 89#L17 assume !(main_~c~0#1 <= 50); 90#L17-1 assume !(main_~c~0#1 <= 100);main_~i~0#1 := 0; 94#L31-2 [2023-11-29 06:40:41,636 INFO L750 eck$LassoCheckResult]: Loop: 94#L31-2 assume !!(main_~i~0#1 < 103);main_~i~0#1 := main_~i~0#1; 94#L31-2 [2023-11-29 06:40:41,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:40:41,636 INFO L85 PathProgramCache]: Analyzing trace with hash 28708162, now seen corresponding path program 1 times [2023-11-29 06:40:41,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:40:41,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381615298] [2023-11-29 06:40:41,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:40:41,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:40:41,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:40:41,643 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:40:41,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:40:41,647 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:40:41,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:40:41,648 INFO L85 PathProgramCache]: Analyzing trace with hash 94, now seen corresponding path program 1 times [2023-11-29 06:40:41,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:40:41,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153307811] [2023-11-29 06:40:41,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:40:41,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:40:41,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:40:41,653 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:40:41,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:40:41,656 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:40:41,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:40:41,657 INFO L85 PathProgramCache]: Analyzing trace with hash 889953085, now seen corresponding path program 1 times [2023-11-29 06:40:41,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:40:41,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545962719] [2023-11-29 06:40:41,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:40:41,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:40:41,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:40:41,664 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:40:41,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:40:41,669 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:40:41,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:40:41,717 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:40:41,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:40:41,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 06:40:41 BoogieIcfgContainer [2023-11-29 06:40:41,741 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-29 06:40:41,742 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 06:40:41,742 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 06:40:41,742 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 06:40:41,743 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:40:40" (3/4) ... [2023-11-29 06:40:41,744 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-29 06:40:41,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed20c236-213c-4155-ac5b-6e8631585391/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-11-29 06:40:41,791 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed20c236-213c-4155-ac5b-6e8631585391/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 06:40:41,791 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 06:40:41,792 INFO L158 Benchmark]: Toolchain (without parser) took 1406.46ms. Allocated memory is still 178.3MB. Free memory was 138.9MB in the beginning and 146.4MB in the end (delta: -7.5MB). Peak memory consumption was 79.2MB. Max. memory is 16.1GB. [2023-11-29 06:40:41,792 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 130.0MB. Free memory is still 76.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:40:41,793 INFO L158 Benchmark]: CACSL2BoogieTranslator took 186.78ms. Allocated memory is still 178.3MB. Free memory was 138.9MB in the beginning and 129.8MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 06:40:41,793 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.39ms. Allocated memory is still 178.3MB. Free memory was 129.1MB in the beginning and 128.4MB in the end (delta: 697.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:40:41,794 INFO L158 Benchmark]: Boogie Preprocessor took 24.07ms. Allocated memory is still 178.3MB. Free memory was 128.4MB in the beginning and 127.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:40:41,794 INFO L158 Benchmark]: RCFGBuilder took 200.13ms. Allocated memory is still 178.3MB. Free memory was 126.3MB in the beginning and 117.2MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 06:40:41,795 INFO L158 Benchmark]: BuchiAutomizer took 917.82ms. Allocated memory is still 178.3MB. Free memory was 117.2MB in the beginning and 67.6MB in the end (delta: 49.6MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2023-11-29 06:40:41,796 INFO L158 Benchmark]: Witness Printer took 49.19ms. Allocated memory is still 178.3MB. Free memory was 67.6MB in the beginning and 146.4MB in the end (delta: -78.8MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2023-11-29 06:40:41,798 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 130.0MB. Free memory is still 76.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 186.78ms. Allocated memory is still 178.3MB. Free memory was 138.9MB in the beginning and 129.8MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.39ms. Allocated memory is still 178.3MB. Free memory was 129.1MB in the beginning and 128.4MB in the end (delta: 697.2kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.07ms. Allocated memory is still 178.3MB. Free memory was 128.4MB in the beginning and 127.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 200.13ms. Allocated memory is still 178.3MB. Free memory was 126.3MB in the beginning and 117.2MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 917.82ms. Allocated memory is still 178.3MB. Free memory was 117.2MB in the beginning and 67.6MB in the end (delta: 49.6MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Witness Printer took 49.19ms. Allocated memory is still 178.3MB. Free memory was 67.6MB in the beginning and 146.4MB in the end (delta: -78.8MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function ((-2 * i) + 199) and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 22 mSDtfsCounter, 8 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 69ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 31]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int c; [L7] int i; [L8] c = (24*6)*6 VAL [c=864] [L10] COND FALSE !(c <= 10) VAL [c=864] [L17] COND FALSE !(c <= 50) VAL [c=864] [L23] COND FALSE !(c <= 100) [L30] i = 0 VAL [c=864, i=0] Loop: [L31] COND TRUE i < 103 [L32] i = i+0 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 31]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int c; [L7] int i; [L8] c = (24*6)*6 VAL [c=864] [L10] COND FALSE !(c <= 10) VAL [c=864] [L17] COND FALSE !(c <= 50) VAL [c=864] [L23] COND FALSE !(c <= 100) [L30] i = 0 VAL [c=864, i=0] Loop: [L31] COND TRUE i < 103 [L32] i = i+0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-29 06:40:41,820 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed20c236-213c-4155-ac5b-6e8631585391/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)